User manual VELODYNE VA 810

[. . . ] Heed Wamings . - Allwamingson me subwooter aro in the operatinginstructions should be adhered to. Follow Instructions -- All operatingard use instru ctions should be followed. Wafer and Moisture - The subwoote r should not be used near water - for example, near a bathtub, washbowl, kitchensink, laundry tub, in a wet basement, near a swimming pool or the like. [. . . ] The unit does not appear to operate normally or exhibits a ma rked change in performance. So me part of the cabinet or ci rcuitry is physically damaged. Warn ing!To prevent fire or shock hazard, do not expose this equipment to rain or moisture. To avoid electrical shock, do not open speaker enclosure or amp chassis cover. Please refer all service questions to your authorized Velodyne dealer. Prior to installation Please unpack the system carefully. Remove all staples used to seal the carton as they can scratch the cabinet. Record the serial number in the space provided on the warranty card for future reference. Product Features & Controls · Built-in 100 watt (RMS) power amplifier · Adjustable (40 to 120hz) low-pass crossover with bypass option · Selectable (80 or 100hz) high-pass crossover · Line-level inputs & outputs · Speaker-level inputs & outputs with 5 way binding post connec tions · Signal sensing auto turn on/off with bypass option · Variable volume control · selectable phase control (0 or 180 degrees) · Detachable power cord (available on some versions) · Magnetically shielded for video use · Dual stag gered low-pass cross over; 12dB/octav e initial, 24dB/ octave ultimate · Gai n comp ression circuit to protect woofer from ove r excursion · Inpu t overload protection Thank you for purchasing a Velodyne! Installation Your new VA-810/ 10 12XII subwoofer system provides for a number of installation options. Read all the installation information below in order to determine which installation opt ion is best for your system. Remember to perform all installation proc edures with system powe r turned off. same channel. Keep in mind that freq uency response and output level carl be drastically influenced by placement depending on the acoustic properties of the listening room . Ty pically the VA-810/1012XII will sound louder when placed next to a wall or in a corner. Inputs Your new VA-810/ 1012 XII subwoofer is equipped with both speaker level and line-level inputs. Use the LINE- IN jacks when connecting your subwoofer to a pre -amp, signal processor, or line-level cross over. The FROM AM PLIFIER jacks connect directly to the speaker outputs of a integrated amplifier or receiver. Your amplifier section will notice no additional loading effects when you use these inputs because of their high impedance. Note 00 not use both LINE-IN and FROM AMPLIFIER inp uts simulta neously. Volume cont rol This control allows you to balance the output from the sub woofer to the main speakers in your system . This contr. olshould be set to achieve similar vol ume level from both the ma in speakers and subwoofer. Low-pass crossover Both sets of inputs sum the left and right channels together and the resulting signal is passed through an adjustable low-pass crossover before being amplified . [. . . ] When installed in this fashion, your satellite speakers will be cros sed over at 80/1OOhz, which removes the lower bass from your amplifier and speakers thus. By utiliZing this method , you will have a bi-amplified system , gaining improved power and headroom for your system. Figure 1: Installation using line-l evel (line in) inputs . 'o:l, u t:l · . :~ :'j~~. ~:I ~L IH I O H PA · · 1 00 ~J . 01 r----:OU T-_ '_ . ~ ~ . Subwoofer out from AN Processor From the low pass output of your signal processor Install into right or left RCA line in connector in the back of the subwoofer or use a "Y" connector adapter into both right and left RCA line in connectors in the back of the subwoofer. Velodyne ~ ~E~-:z=. i · ·· 1 . . - . . . . . . . . Speaker-level connection Figure 2 shows an easy way to connect your VA· 810/1 012XII subwoofer directly to your receiver or integrated amplifier. AMP LIFI ER cilllJ MAIN OUTPUTS RIGHT LEFT PRE· A MP MAIN OUTPUTS RIGHT LEFT MA IN IN PUT S RIGHT LEFT Whe n connected in this fashion, your satellite speakers will be crossed over at 80/1O Ohz, which removes the lower bass from your speakers thus, enabling them to do a better job reproducing high freque ncies. [. . . ]